Folding square.



E. E. BENNETT.

FOLDING SQUARE.

APPLICATION Hmm JULY 2, 190s.

Patented July 6, 1909.

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ERNEST E.V BENNETT, OF OAKHURST, NEW JERSEY.

FOLDING SQUARE.

Specification of Letters Patent.

Application led July 2, 1908.

Patented July 6, 1909.

Serial No. 441,708.

number of positions and which when not in use can be folded into a smaller space than the rigid square in ordinary use.

The invention consists in the novel features of construction hereinafter described, pointed out in the claims and shown in the accompanying drawings, in which Figure l is a plan view of my square, adjusted positions being` indicated by dotted lines. Eig. 2 is a section on the line 2 2 of Fig. l. li'ig. 3 is a detail plan view, a supporting plate being removed. Fig. 4i is a section on the line 4-4 of Fig. 3.

In these drawings l represents the stationary side of the square which is provided adjacent one end with notches 2 and 3, said notches having different inclinations, and adjacent its end this side member is provided with a socket 4. To this end portion of the square and at right angles to the said side member l are riveted supporting plates 5 spaced apart and which carry adjacent their outer ends a transversely arranged pin 6. The second member 7 of the square is longitudinally slotted as shown at 8 and works between the supporting plates 5, the pin 6 passing loosely through the slot 8. An inner end of the member 7 is inclined to a wedge shaped point 9, this inclined or pointed end resting within the socket l when the device is used as a square and the wedge shaped point 9 'fitting in either the notch 2 or the notch 3 when the member 7 is to be locked in one of its other positions. I prefer to thread one end of the pin 6 and to cut out one of the plates 5 and insert in said cut out portion an ordinary nut 10 into which the pin threads, and the other end of the pin is provided with a round slotted head 1.1 said head being beveled so that a slight turn of the pin will draw the parts closely to ether. By means of this construction if the t eads become worn it is only necessary to insert a new standard nut in place of the worn one, which can be done at a triiling cost, the said nut acting as a threaded bushing. It will be obvious that the member 7 can be locked at right angles to the member 1 by dropping it into the socket 4, or at other angles by wedging the oint 9 into the notches, and it will also be o vious that these notches may be so formed as to give the inclination desired, and in practice they would comprise those angles most usually called for in the class of work for which that particular form of the invention was designed. For example the device may be sold with the member 7 adapted, to be locked in position to give a square, two sides of a pentagon and two sides of an Octagon.

What I claim is l. A device ofthe kind described compris ing a stationary member of a square, supporting plates carried by said square at one end, a threaded pin assing through said plates, a movable mem er pivotally mounted upon said pin and having a reduced wedge shaped inner end, notches being cut in the stationary member to receive said point, and a socket being formed in said stationary member to receive the inner end of the movable member when at right angles to the stationary member.

2. A device ofthe kind described comprising a square formed of two disconnected members, plates carried by one of said members and spaced apart, and a locking pin carried by said plates and serving as a pivot point for the other member, the member carrying the plates being notched, and the pivoted member having a wedge shaped inner end adapted to engage said notches, as and for the purpose set forth.

ERNEST E. BENNETT.

Witnesses L. E. NEWMAN, Gno. CLAYPooLE. 

